My question involves criminal law for the state of: Florida

The person in question was convicted of lewd and lascivious battery of a minor in 1998. He was 23 and the victim was 16 before any sexual activity took place. The prosecution claimed that she was 14 when he began "grooming" her to be his victim. There was no proof of contact before age 16, but he was found guilty and received 30+ years probation along with jail time.

I believe that an age of consent change has occurred since his conviction, making a consensual sexual relationship between a 16yo and 23yo no longer a felony. What would have to happen for him to have the courts revisit his case and possinly remove his sex offender status and terminate probation?